Means for automatically controlling the steam-supply to producers.



H. F. SMITH.

MEANS POR AUTOMATXCALLY UON'I'ROLLING THB STEAM SUPPLY T0 PRODUCERS.

APPLIATIN FILED APR. 29, 1909,

933,592. Patented sept. 7, 1909.

2 SHEETS-SHEET 1,

H, E'. SMITH. MEANS FR UTUMATICALLY ONTROLLING THE STEAM SUPPLY T0 PRODUCERS. ArPLIcATIoN ULEB APR.29,1909.

938,592, Patented Sept. 7,1909.

2 SHEETS-SHEBT 2` INI/ENTo/e i im TC HARRY FORD SMITH, OF LEXINGTON, OHIO.

MEANS FOR AUTOMATICALLY CONTROLLING 'TI-IE STEAISUPPLY TO PRODUCERS.

Specification of Letters Patent.

Patented sept. 7, 1909.

Applcationled April 29, 1909. Serial No. 492,922.

To all whom it may concern:

Be it known that I, l'IAnnr Folin SMITH, a citizen of the United States, residing at Lexington, in the county ot' Richland and State of Ohio, have invented eertain new and useful Improvements in Means for Automatioally (.lontrolling the Steam-Supply to lrodueers, of whit-h the following is a speeifieation.

My invention relates to an improvement in means for automatically controlling:y the steam supply to produeers` and it consists in means, such for instanee as is set forth in another application `derial .\'o. 492.923, in which the gas pressure, is automat' ally regulated by means ot' a pressure regulating valve, ,f rasometer or gas holder, and eonneetions between the two for automatieally varying the load of leasometer in such a manne as to compensate for the.variation in weight of the gasometer due to its submersion, thereby providing` greater sensitiveness in the movement ot the valve whereby to es tablish and maintain a perteet equilibrium and bring about an aeeurate eontrol pressure. lt is evident that the position of the las throttle valve ret'erred to is a reliable lndex of the amount of eas being delivered by the plant, and the object of the present invention is to always insure a proportional amount of steam in the blast. and tothis end a second valve is plat-ed on the steam lille leading tothe producer ash pit from a suitable source of steam supply, such as a boiler.

lith this objeet. in view, my invention consists in certain novel features oit construetion and combination:-` ot' parte whit-h will be hereinafter deseribed and pointed out in the claims.

ln the aeeompanying drawings: Figure l is an enlarged view showing parts broken away. parts in vertieal set-tion. and other parts in end elevation, and ["ig. L is an onlarged plan view.

A, represents a easing' and is in elleet a four-way union or coupling; closed at the, top and bottoni by means of plates l and L se,- enrely bolted thereon. and ll is an ort'linary form otl bell or ltrasometer, and a pipe.

il leads from the easingl at` a eonvenient point and diseharges into lln- {asoineten level' l) is pivotally"supported at one end to the u per end o'lt an arm l ereeted on the top p ato l ol the easing. and the other end is pivotally connected with a rod 5, which rod is secured at its lower end to the bell of the gasometer. Links E, E, are pivotally connected at theupper end to the lever D, and at the lower end to a rod 6, and this rod carries a throttle valve T` at its lower end which operates in the valve seat 8, within the Aeast.- iug where it controls the flow `ot gas and regulatesl its pressure. A bell crank or L- shaped lever Il is `t'ulcrnmed at K otthe postr 9 mounted on the top plate'l of the easing. and the short arm ot this lever is connected by means of links C, C, with the lever I), preferably at a point approximately midway between the rods 5 and 6. weight lV is adjnstably secured onthis bell erank or L-Shaped lever. It is at once seen that by means o this construction the adjustable weight NV will exert a downward pressure upon the gaaometer through the lever l) which is proportional tothe displacement of the lever from its vertical position. This displacement varies wtth the position ot' the gasometer, and consequently with the degree ot' immersion. As the immersion becomea less, and the gasonieter thereby heavier, the active working,` leverage of the weight 'W also becomes lees, and it exerts thereby a small downward pressure on the lever l). By adjusting the weight ll", on the arm Il, a point can be readily found where the deerease in weight due t0 the movement of the weight W just counterbalances and etplalizes the increase in weight ot' the gasometer as it rises from the liquid seal.

ther submerged by its downwardmotion, the weight lV by its displacement adds just as mueh weight as is lost through the submersion ol the gasometer and a condition of eqnililnrium is thereby established.

'lhe steam controlling device of this invention eonsists of a second throttle valve 10. A lever l1 is pi votally connected at one end to the.l up arr end ot a post 12 which latter is pivotally supported on the casing of the valve 10, and a link 13 is pivotally conneeted with this lever ll at oneI end and a. valve stem ll at the o'lherfend. The lever 11 is either attached direetly or` indirectly to the gasometer or to the gas throttlevalve, and net-.ted indirectly by means ot abolt 15 to thel lever D. ln this way, the movement of the Contrat-mise, as the gasonieter is fur-v as shown in the illustration, it is con-v two valves is livays proportional, This second valve is laced on a steam line leading from a suitab source of steam supply (not shown) such as a boiler, anddiscliarging into the producer ashpit (not shown). 1

From the foregoing it isnt once ap arent that when the gas\demand tincrcases, t e gas throttle valve will tppen wider to .permit the passage of a larger this movement will also open the steam valve wider and admit more steam to the producer ash pit. then the load decreases, the gas and steam valves will both be proportionally closed. Any variation in the amount of gas passing from the apparatus therefore causes an immediate andl roportiouate variation in the amount o steam supplied to the apparatus, this being the result it is desired to obtain through the use of this apparatus.

Havin fully described my invention, what I caim as nevi;r and desiie to secure by Letters Patent, is

1. The combination with a gasometer, gas and steam passages, the former in communication with the gasometer, and valves for controllin said 'gas and steam passages, of compoun lever mechanism comprising three levers, namely, a primary lever, anda. secondary lever pivotallj,r connect/ed together and connecting the valves with the bell of the gasometer, and a third lever connected volume of the gas, and' with the rimar lever and havin a varil? .Y g

able weig' t supported upon said lever.

2. The combination with a gasometer, gas and steam passages and valves oontrollmg said passages, the gas passage communicatinrg with the interior of the gasometer, of u ever pi votally su ported at one oint and pivotally connecte with the bel of the gasometcr at another, a secondary lever pivotally supported at one end and pivotally connected with the lirst mentioned lever, said levers pivotally connected with the two vlvcs.

3. The combination with a gasoxneter, gas and steam passages and Valves controlling said passages, the gas passage communicating with til-ie interior o the gasometer, of a lover pivotally sup orted at one oin t and pivotally mnnecte with the bel of the gasometer at another, a secondary lever pivotally supported at one end and pivotally connected with the'rst-mentioned lever, said levers pivot-ally connected with the two vulves, and a weighted lever resting upon the first-mentioned lever.

In testimony whereof I aix my signature, in the presence of two Witnesses.

WM. H. EAnHAR'r, S. L. EARHART. 

